Marc by Anna Hackett

We survived the invasion and beat the aliens. But they left something behind…

Killing monsters is what I do. Like my father before me, I fight side by side with my twin brother and my squad to protect our people.
Since the invasion, life is dangerous. I know how short it can be, so I live it to the fullest. I work hard on Hunter Squad, I party harder, I love a joke and a good time, and I never get tangled up in relationships. I watched my father’s grief at losing his brother. I almost lost my own twin. I’ll never let myself get in too deep.
Then our squad’s pilot crashes alone in monster-infested mountains.
Tiny, opinionated Colbie who’s the best pilot I know. A fierce redhead who never hesitates to stand up to me.
Everything changes. Every protective instinct I have is in overdrive. I have to find her and bring her home.

I’ll risk it all—monsters, raging rivers, dangerous terrain—but when the two of us are alone and fighting for survival, I realize that what’s most at risk is the one thing I’ve always guarded—my heart.